#overlay { position: fixed; /* Sit on top of the page content */ display: block; /* Hidden by default */ width: 100%; /* Full width (cover the whole page) */ height: 100%; /* Full height (cover the whole page) */ top: 0; left: 0; right: 0; bottom: 0; background-color: rgba(0,0,0,0.5); /* Black background with opacity */ z-index: 2; /* Specify a stack order in case you're using a different order for other elements */ cursor: pointer; /* Add a pointer on hover */ } #text-overlay { position: relative; top: 50%; left: 50%; font-size: 50px; color: red; transform: translate(-50%,-50%); -ms-transform: translate(-50%,-50%); transform: rotate(-45deg); transform-origin: -100px 90%; }